Flutter 如何在Flatter中创建分隔符gridview?
我需要用水平线和垂直线分隔GridView的所有项目。 谢谢Flutter 如何在Flatter中创建分隔符gridview?,flutter,Flutter,我需要用水平线和垂直线分隔GridView的所有项目。 谢谢 GridView( 收缩膜:对, gridDelegate:SliverGridDelegateWithFixedCrossAxisCount( childAspectRatio:1.0, 主轴间距:2.0, 交叉轴间距:2.0, 交叉轴计数:3), 儿童:[ 手势检测器( onTap:(){ //_设置ModalBottomSheet(上下文); }, 子项:itemWidgetDialog() ), 对于(inti=0;i编辑,您
GridView(
收缩膜:对,
gridDelegate:SliverGridDelegateWithFixedCrossAxisCount(
childAspectRatio:1.0,
主轴间距:2.0,
交叉轴间距:2.0,
交叉轴计数:3),
儿童:[
手势检测器(
onTap:(){
//_设置ModalBottomSheet(上下文);
},
子项:itemWidgetDialog()
),
对于(inti=0;i编辑,您需要网格化
代码片段
GridTile(
child: Container(
decoration:
BoxDecoration(border: Border.all(color: Colors.black, width: 0.5)),
完整代码
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
final title = "Grid List";
return MaterialApp(
title: title,
home: Scaffold(
appBar: AppBar(
title: Text(title),
),
body: GridView.count(
crossAxisCount: 3,
children: List.generate(choices.length, (index) {
return Center(
child: ChoiceCard(choice: choices[index]),
);
}))));
}
}
class Choice {
const Choice({this.title, this.icon});
final String title;
final IconData icon;
}
const List<Choice> choices = const <Choice>[
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.directions_bike),
const Choice(title: 'Boat', icon: Icons.directions_boat),
const Choice(title: 'Bus', icon: Icons.directions_bus),
const Choice(title: 'Train', icon: Icons.directions_railway),
const Choice(title: 'Walk', icon: Icons.directions_walk),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.drafts),
const Choice(title: 'Boat', icon: Icons.dvr),
const Choice(title: 'Bus', icon: Icons.copyright),
const Choice(title: 'Train', icon: Icons.cloud_off),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.directions_bike),
const Choice(title: 'Boat', icon: Icons.directions_boat),
const Choice(title: 'Bus', icon: Icons.directions_bus),
const Choice(title: 'Train', icon: Icons.directions_railway),
const Choice(title: 'Walk', icon: Icons.directions_walk),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.drafts),
const Choice(title: 'Boat', icon: Icons.dvr),
const Choice(title: 'Bus', icon: Icons.copyright),
const Choice(title: 'Train', icon: Icons.cloud_off),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.directions_bike),
const Choice(title: 'Boat', icon: Icons.directions_boat),
const Choice(title: 'Bus', icon: Icons.directions_bus),
const Choice(title: 'Train', icon: Icons.directions_railway),
const Choice(title: 'Walk', icon: Icons.directions_walk),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.drafts),
const Choice(title: 'Boat', icon: Icons.dvr),
const Choice(title: 'Bus', icon: Icons.copyright),
const Choice(title: 'Train', icon: Icons.cloud_off),
];
class ChoiceCard extends StatelessWidget {
const ChoiceCard({Key key, this.choice}) : super(key: key);
final Choice choice;
@override
Widget build(BuildContext context) {
final TextStyle textStyle = Theme.of(context).textTheme.display1;
return GridTile(
child: Container(
decoration:
BoxDecoration(border: Border.all(color: Colors.black, width: 0.5)),
child: Card(
color: Colors.white,
child: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Icon(choice.icon, size: 80.0, color: textStyle.color),
Text(choice.title, style: textStyle),
]),
)),
));
}
}
导入“包装:颤振/材料.省道”;
void main(){
runApp(MyApp());
}
类MyApp扩展了无状态小部件{
@凌驾
小部件构建(构建上下文){
最终标题=“网格列表”;
返回材料PP(
标题:标题,,
家:脚手架(
appBar:appBar(
标题:文本(标题),
),
正文:GridView.count(
交叉轴计数:3,
子项:List.generate(choices.length,(index){
返回中心(
child:ChoiceCard(选项:选项[索引]),
);
}))));
}
}
班级选择{
常量选择({this.title,this.icon});
最后的字符串标题;
最终的Iconda图标;
}
常量列表选项=常量[
常量选择(标题:“汽车”,图标:图标。方向和汽车),
const Choice(标题:“自行车”,图标:Icons.directions\u bike),
康斯特选择(标题:“船”,图标:图标。船的方向),
常量选择(标题:“总线”,图标:图标。方向\u总线),
施工选择(标题:“火车”,图标:图标。方向和铁路),
常量选择(标题:“行走”,图标:图标。方向和行走),
常量选择(标题:“汽车”,图标:图标。方向和汽车),
const Choice(标题:“自行车”,图标:Icons.drafts),
const Choice(标题:“船”,图标:Icons.dvr),
const Choice(标题:“总线”,图标:Icons.版权所有),
常量选择(标题:“火车”,图标:图标。云彩关闭),
常量选择(标题:“汽车”,图标:图标。方向和汽车),
const Choice(标题:“自行车”,图标:Icons.directions\u bike),
康斯特选择(标题:“船”,图标:图标。船的方向),
常量选择(标题:“总线”,图标:图标。方向\u总线),
施工选择(标题:“火车”,图标:图标。方向和铁路),
常量选择(标题:“行走”,图标:图标。方向和行走),
常量选择(标题:“汽车”,图标:图标。方向和汽车),
const Choice(标题:“自行车”,图标:Icons.drafts),
const Choice(标题:“船”,图标:Icons.dvr),
const Choice(标题:“总线”,图标:Icons.版权所有),
常量选择(标题:“火车”,图标:图标。云彩关闭),
常量选择(标题:“汽车”,图标:图标。方向和汽车),
const Choice(标题:“自行车”,图标:Icons.directions\u bike),
康斯特选择(标题:“船”,图标:图标。船的方向),
常量选择(标题:“总线”,图标:图标。方向\u总线),
施工选择(标题:“火车”,图标:图标。方向和铁路),
常量选择(标题:“行走”,图标:图标。方向和行走),
常量选择(标题:“汽车”,图标:图标。方向和汽车),
const Choice(标题:“自行车”,图标:Icons.drafts),
const Choice(标题:“船”,图标:Icons.dvr),
const Choice(标题:“总线”,图标:Icons.版权所有),
常量选择(标题:“火车”,图标:图标。云彩关闭),
];
类ChoiceCard扩展了无状态小部件{
const ChoiceCard({Key-Key,this.choice}):super(Key:Key);
最终选择;
@凌驾
小部件构建(构建上下文){
final TextStyle TextStyle=Theme.of(context).textTheme.display1;
返回网格(
子:容器(
装饰:
BoxEdition(边框:border.all(颜色:Colors.black,宽度:0.5)),
孩子:卡片(
颜色:颜色,白色,
儿童:中心(
子:列(
mainAxisSize:mainAxisSize.min,
crossAxisAlignment:crossAxisAlignment.center,
儿童:[
图标(choice.Icon,大小:80.0,颜色:textStyle.color),
文本(choice.title,style:textStyle),
]),
)),
));
}
}
进口“包装:颤振/材料.省道”;
类GridList扩展了StatefulWidget{
字符串标题,productCount;
列出样本数据;
GridList(this.title、this.productCount、this.sampleData);
@凌驾
_GridListState createState()=>\u GridListState();
}
类GridListState扩展了状态{
@凌驾
小部件构建(构建上下文){
int gridViewCrossAxisCount=3;
返回容器(
边距:所有边缘集(25.0),
子:列(
crossAxisAlignment:crossAxisAlignment.start,
儿童:[
GridView.builder(
收缩膜:对,
控制器:新的ScrollController(keepScrolOffset:false),
itemCount:widget.sampleData.length,
gridDelegate:SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount:gridViewCrossAxisCount,
儿童方面:(3/4),
),
itemBuilder:(构建上下文,int索引){
返回容器(
装饰:mybox装饰(索引、gridViewCrossAxisCount),
);
},
),
],
),
);
}
BoxDecoration myBoxDecoration(int索引,int gridViewCrossAxisCount){
索引++;
返回框装饰(
颜色:颜色。绿色,
边界:边界(
左:边界边(
//感谢您的回答,但我需要将ligne和colomun与ligne分开,如图x | x------x | x很高兴能提供帮助。如果这能解决您的问题,请将其标记为答案。如果这不能解决您的问题,请忽略此消息。@chunhunghan
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
final title = "Grid List";
return MaterialApp(
title: title,
home: Scaffold(
appBar: AppBar(
title: Text(title),
),
body: GridView.count(
crossAxisCount: 3,
children: List.generate(choices.length, (index) {
return Center(
child: ChoiceCard(choice: choices[index]),
);
}))));
}
}
class Choice {
const Choice({this.title, this.icon});
final String title;
final IconData icon;
}
const List<Choice> choices = const <Choice>[
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.directions_bike),
const Choice(title: 'Boat', icon: Icons.directions_boat),
const Choice(title: 'Bus', icon: Icons.directions_bus),
const Choice(title: 'Train', icon: Icons.directions_railway),
const Choice(title: 'Walk', icon: Icons.directions_walk),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.drafts),
const Choice(title: 'Boat', icon: Icons.dvr),
const Choice(title: 'Bus', icon: Icons.copyright),
const Choice(title: 'Train', icon: Icons.cloud_off),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.directions_bike),
const Choice(title: 'Boat', icon: Icons.directions_boat),
const Choice(title: 'Bus', icon: Icons.directions_bus),
const Choice(title: 'Train', icon: Icons.directions_railway),
const Choice(title: 'Walk', icon: Icons.directions_walk),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.drafts),
const Choice(title: 'Boat', icon: Icons.dvr),
const Choice(title: 'Bus', icon: Icons.copyright),
const Choice(title: 'Train', icon: Icons.cloud_off),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.directions_bike),
const Choice(title: 'Boat', icon: Icons.directions_boat),
const Choice(title: 'Bus', icon: Icons.directions_bus),
const Choice(title: 'Train', icon: Icons.directions_railway),
const Choice(title: 'Walk', icon: Icons.directions_walk),
const Choice(title: 'Car', icon: Icons.directions_car),
const Choice(title: 'Bicycle', icon: Icons.drafts),
const Choice(title: 'Boat', icon: Icons.dvr),
const Choice(title: 'Bus', icon: Icons.copyright),
const Choice(title: 'Train', icon: Icons.cloud_off),
];
class ChoiceCard extends StatelessWidget {
const ChoiceCard({Key key, this.choice}) : super(key: key);
final Choice choice;
@override
Widget build(BuildContext context) {
final TextStyle textStyle = Theme.of(context).textTheme.display1;
return GridTile(
child: Container(
decoration:
BoxDecoration(border: Border.all(color: Colors.black, width: 0.5)),
child: Card(
color: Colors.white,
child: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Icon(choice.icon, size: 80.0, color: textStyle.color),
Text(choice.title, style: textStyle),
]),
)),
));
}
}
import 'package:flutter/material.dart';
class GridList extends StatefulWidget {
String title,productCount;
List<String> sampleData;
GridList(this.title, this.productCount, this.sampleData);
@override
_GridListState createState() => _GridListState();
}
class _GridListState extends State<GridList> {
@override
Widget build(BuildContext context) {
int gridViewCrossAxisCount = 3;
return Container(
margin: EdgeInsets.all(25.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
GridView.builder(
shrinkWrap: true,
controller: new ScrollController(keepScrollOffset: false),
itemCount: widget.sampleData.length,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: gridViewCrossAxisCount,
childAspectRatio: (3 / 4),
),
itemBuilder: (BuildContext context, int index) {
return Container(
decoration: myBoxDecoration(index, gridViewCrossAxisCount),
);
},
),
],
),
);
}
BoxDecoration myBoxDecoration(int index, int gridViewCrossAxisCount) {
index++;
return BoxDecoration(
color: Colors.green,
border: Border(
left: BorderSide(
// <--- left side
color: index % gridViewCrossAxisCount != 0 ? Colors.black12 : Colors.transparent,
width: 1.5,
),
top: BorderSide(
// <--- left side
color: index > gridViewCrossAxisCount ? Colors.black12 : Colors.transparent,
width: 1.5,
),
),
);
}
}